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Biological Assets And Inventory - Schedule of Estimates of Significant Inputs Related to Biological Assets and Inventory (Parenthetical) (Detail) - wk | 12 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017
Disclosure Of Significant Unobservable Inputs Used In Fair Value Measurement Of Assets [Line Items] |  |
Average number of weeks | 6 | 7
Stage of growth [member] |  |
Disclosure Of Significant Unobservable Inputs Used In Fair Value Measurement Of Assets [Line Items] |  |
Average number of weeks | 16 |

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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. + References No definition available. + Details
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- Details
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Period Type: |